baber/WOPTO huggingface dataset:
Patent DE-3838208-A1 (DE)
Title: Apparatus for cutting foam
IPC: B26D1/00
Filed: 1988-11-11
Abstract: According to the invention, polyether foams of an apparent density < 18 kg/m<3> and a compressive strength < 2.5 kPascal are cut with a knife which has a sawtooth-shaped ground finish and consists of razor blade strip or alloyed steel strip.
Patent DE-3841052-A1 (DE)
Title: Propshaft and method for its manufacture
Inventor: WAKAMATSU MINORU
IPC: B60K17/35
Filed: 1988-12-06
Abstract: A propshaft comprises a first hollow shaft section, which is to be connected by way of a universal joint to a drive side, a second hollow shaft section, which is to be connected by way of another universal joint to an output side, and a viscous coupling connected to the first and second shaft sections respectively.
Patent DE-3842927-A1 (DE)
Title: Method for storing colour television signals
Inventor: SEEGERT BERNHARD
IPC: H04N9/64
Filed: 1988-12-21
Abstract: In the known arrangements, the colour signal is first demodulated before being stored in a buffer and is modulated again after it has been read out of this buffer. This involves great circuit complexity.   According to the invention, the colour vector is stored together with the burst. This is used as reference frequency for a phase-locked loop following the buffer, which reference frequency is compared with the burst of the colour signal of the main frame. Picture-in-picture reproduction in colour television receivers. <IMAGE>
Patent DE-3900221-A1 (DE)
Inventor: DOUGLAS BARRY D
IPC: B05B12/12
Filed: 1989-01-05
Abstract: A control system for providing uniform spraying of plants and for spraying only areas containing plants comprises a plurality of plant sensors 29a - d each for detecting the presence or absence of plants in a narrow field of view and which cause spray nozzles 28 to provide a spray solution to only areas containing plants. A ground speed sensor 40 causes the volume of spray solution to be adjusted to provide a predetermined density of coverage of plants irrespective of the ground speed of the sprayer. <IMAGE>
Patent DE-3905100-A1 (DE)
Title: Method and appliance for electrolyte exchange especially in narrow recesses of large-area workpieces
Inventor: HENIG HANS
IPC: C25D21/10
Filed: 1989-02-20
Abstract: Method and appliance for effecting a regular, periodic exchange of the aqueous solutions for the purpose of chemical or electrolytic surface treatment at the surfaces and, especially, in narrow surface recesses (holes) of large-area workpieces occurring both individually and as loose piles and being made of metals or plastics, by temporally periodic changes in position (by oscillating or rotating relative movements) of the said workpieces in the said solutions. The invention is characterised by the combination of the following two features:   1. The immersed workpieces having a large-area spatial shape are, in particular, sheet-like, planar printed-circuit boards, positioned vertically or horizontally, for printed circuits having drilled holes, or alternatively, the batches of loose mass-produced parts in perforated immersion drums rotating about their essentially horizontal longitudinal axis, 2. the said workpieces, in rapid succession, carrying out violent vibrational oscillations with respect to the various treatment solutions adjoining them, the frequencies of which oscillations are at least 60, but preferably considerably higher and are equal to an integer multiple of 60 vibrations per minute, and whose amplitudes correspond to values less than 15 mm.   <IMAGE>
Patent DE-3908075-A1 (DE)
Title: Device for intrinsically safe DC-isolated signal transmission in shearer loaders
Inventor: BRYCHTA PETER DR
IPC: E21C35/24
Filed: 1989-03-13
Abstract: For routing signals between intrinsically safe plants or non-intrinsically safe plants or non-intrinsically safe plants and intrinsically safe plants, a device is provided in which in each case transmitter-transmission elements and, respectively, receiver-transmission elements are provided which convert electrical signals into optical signals or vice versa and are in each case assigned to one space or, respectively, to the respective plant. In this way, the necessary signals are routed as optical signals between the different plants, irrespective of the respective design in terms of intrinsic safety. In this way, due to the intrinsically safe DC-isolated signal transmission, corresponding signals can be transmitted between the various housings and to the outside, even in the case of shearer loaders, without any risks. Above all, however, different apparatuses and plants can be combined with each other in this way without specific permission (authorisation, licence) being required in each case for the combination, as long as the individual devices as such are permitted. <IMAGE>
Patent DE-3913974-A1 (DE)
Title: Arrangement for the releasable connection of two bodies, in particular tie-rod connection
Inventor: SYVERTSEN PER MORTEN
IPC: F16B7/18
Filed: 1989-04-27
Abstract: One of the two bodies (1, 2) is provided with a conical depression (4a) which exhibits an internal thread (6) and into which there may be screwed a cone (3) which is arranged on the other body (1) and has an external thread. In known connections with a thread base which is rounded off in the form of an arc of a circle, there is a concentration of stresses in the lowermost part. A reduction in the maximum stressing can be achieved in that, in the case of the invention, the profile of the thread base is configured such that the curvature in the lowermost part (11) is at its smallest and increases with respect to the higher parts of the adjacent, load-bearing thread flank (12). <IMAGE>
Patent DE-3916471-A1 (DE)
Title: Illumination for information carrier - by electroluminescent source of light and optical fibre
Inventor: MOSER HELMUT
IPC: F21V8/00
Filed: 1989-05-20
Abstract: An information carrier such as a wall board, indicator scales of instruments etc. has at least one optical fibre (1) and at least one lamp (2). The light emitted by the latter enters the optical fibre and emerges from it at the desired spot (3) without any total reflection. The emerging light either represents the information itself or it lights up an information carrier.  The preferred lamp is an electroluminescent light source which is connected to an a.c. power supply (4). ADVANTAGE - This eliminates diffused light and the entire light flux is used for lighting up the information. The source of light is compact and simple.
Patent DE-3919704-A1 (DE)
Title: Plastics injection-moulding machine
Inventor: HEHL KARL
IPC: B29C45/17
Filed: 1989-06-16
Abstract: The cuboidal switch cabinet (17) for the electronic control equipment of the injection-moulding machine forms a structural unit with a data display device (18) and a program keyboard. A side screened off by a door or cover as a maintenance side (17a) permits the maintenance of the control equipment. A side exhibiting the program keyboard (19) and the screen (18a) of the data display device (18) forms an operator side (17d). The switch cabinet (17) is arranged in the region of one end edge (16d) of the machine frame on the operator longitudinal wall of the machine frame in constant spatial relationship with the latter. The operator side (17d) bounds an operator place (B), lying in the central region of this operator longitudinal wall (16a), the maintenance side (17a) being perpendicular to the operator side (17d). On the injection-moulding machine there are a plurality of electric loads, whose electronically actuated intermediate elements for open-loop and/or closed-loop control of the loads and/or of the power supplied to the loads are functionally and spatially assigned in a way corresponding to a differentiated, programmed timing and clamping sequence and which for this purpose lie in the circuit of the power-supplying lines. In the switch cabinet there is a distributor. The power-carrying lines extend from the distributor and the intermediate elements are located in the switch cabinet (17). By such a design ... Original abstract incomplete. <IMAGE>
Patent DE-3921271-A1 (DE)
Title: New purine-8-sulphonamide derivs. - useful as herbicides and plant growth regulators
Inventor: FISCHER KLAUS DR
IPC: C07D473/40
Filed: 1989-06-29
Abstract: Purine-8-sulphonamides of formula (I) and their salts are new:  the dotted line denotes a 7,8 double bond when R2 is on N or an 8,9 double bond when R2 is on N7; R1 = H or 1-4C alkyl; R2 = (a) H, (b) 1-6C alkyl opt. substd. by 1-5 halogen atoms and/or one of 1-4C alkoxy, 1-4C haloalkoxy, 1-4C alkylthio, 1-4C haloalkylthio, Ph, OPh or SPh, (c) 3-4C alkenyl or alkynyl, or (d) satd. or monounsatd. opt. substd. 5- to 7-membered heterocyclyl; R3 and R4 = (a) halogen, (b) 1-4C alkoxy, 1-4C alkylthio, 2-6C alkenyl, 2-6C alkenyloxy, 2-6C alkenylthio, 2-6C alkynyloxy or 2-6C alkynylthio, all opt. substd. by 1-5 halogen atoms and/or one of 1-4C alkoxy, 1-4C haloalkoxy, 2-4C alkylthio, 1-4C haloalkylthio, Ph, OPh and SPh, (c) 3-6C cycloalkyl, 3-6C cycloalkylthio, 5-6C cycloalkenyl, 3-6C cycloalkoxy, 5-6C cycloalkenyloxy, 5-6C cycloalkenylthio, phenyl, phenoxy, phenylthio, benzyl, benzyloxy or benzylthio, all being opt. substd.; (d) gps. as defined for R2, or (e) NR7R8; R7 and R8 = H, 1-6C alkyl, 3-6C alkenyl, 3-6C  alkynyl, 3-6C cycloalkyl, 5-6C cycloalkenyl, or opt. ring-substd.  phenyl or benzyl; or R7 + R8 = 4-6C alkylene opt. interrupted by O, S or N and opt. substd. by up to three 1-4C alkyl gps.; X = N or CR5; R5 is as defined for R3; n = 0 or 1; A = mono- or bicyclic aryl or heteroaryl contg. 0-2 N, O and/or S atoms, opt. substd. by 1-5 halogen atoms and/or 1-3 of CN, NO2, SCN, COR6, S(O)mR6 and gps. as defined for R3; R6 = OH, NH2 or as defined for R3; m = 1 or 2. USE - (I) are herbicides and plant growth regulators (no test data given).
Patent DE-3923316-A1 (DE)
Title: Display screen work table for simplified wiring - comprising adjustable pedestals which carry tray with access hole and exchangeable table top
Inventor: DOXIE PIER
IPC: A47B21/00
Filed: 1989-07-14
Abstract: A work table for a display screen has two pedestals (4) which are adjustable in height and represent channels for cables within the two side covers (1, 2). They carry a tray (5) with an access hole at the underside in front which is closed by a lid (9). An exchangeable table top (6) is fixed to the tray and has two access holes to the interior of the tray, closed by detachable lids (7). All components of this work table are preferably made of rigid PU foam, with two metal tubes in the shape of inverted U's across the front and rear of the pedestals. The feet (12) are profiled tubes, closed by caps (13). ADVANTAGE - This simplifies the wiring and meets the ergonomic requirements for computer work tables in offices.
Patent DE-3924636-A1 (DE)
Title: Separating arrangement wt. elements from heavy metal, e.g. lead, strip - has guide path forming wts. into suitable curvature for mounting
Inventor: JANIA BODO
IPC: B23D23/00
Filed: 1989-07-26
Abstract: One or more guide elements (17, 18) fixed to an intermediate or housing wall (10) form a curved guidance and deformation path for the end (16) of the metal strip which is transported by a control element (25, 25a). The end of the strip is fed into an outlet aperture (20) near a measurement marker of a fixed length measurement device and moved relative to the measurement device by the control element.  A cutter is moved (24) towards the end of the strip in the region of the aperture. USE - For separating wts. with curved shape facilitating their mounting for balancing vehicle wheels.
Patent DE-3928771-A1 (DE)
Inventor: HAEUSER ULRICH DIPL ING DR
IPC: F02C6/18
Filed: 1989-08-31
Abstract: A method and device for generating steam and electric power for the start-up and/or auxiliary operation of a steam power station include at least one start-up gas turbine, a generator driven by the start-up gas turbine for generating power, and a start-up or auxiliary steam generator being fed by condensate from a main circuit of the steam power station. The exhaust or exit gas from the start-up gas turbine is fed to the start-up or auxiliary steam generator and heating of the start-up or auxiliary steam generator is effected by waste heat in the exhaust or exit gas stream from the start-up gas turbine.
Patent DE-3930946-A1 (DE)
Title: Magnetic marking system for articles - has strip markings that pass through AC field to generate detector output
Inventor: YAMASHITA MITSUO
IPC: G06K7/08
Filed: 1989-09-15
Abstract: An article (1) has identification markings in the form of bondd thein strips or wires (2) and is fed on a conveyor belt (4) through a detection and identification stator.  The article passes through a first stage (9a) that is in the form of a excitation coil coupled to an oscillator (6a).  A second exciter stage (9b) is set at right angles and is coupled to a separate oscillator (6b). Detector coils (10a,10b) are set above and below the belt and are coupled together.  Outputs are fed to the measuring instrument (8). The outputs generated by the interaction of the markings with the field allows the article to be identified. ADVANTAGE - Allows both presence and type of article to be determined.
Patent DE-3937605-A1 (DE)
Title: Moisture sensor to detect a water layer on a car-window - uses 2 capacitor electrodes on or in the glass window which change their mutual capacitance value in the presence of a moisture layer
Inventor: SCHROEDER HANS-JOACHIM
IPC: G01N27/22
Filed: 1989-11-11
Abstract: The moisture sensor features 2 capacitor plates (5,6) placed side by side between layers (1,2) of the laminated glass window. The plates are pref. made of metal-foil, an Al-layer or an InSn-oxide conductive layer. The laminated glass pref. consists, in the area where the electrodes are formed, of an outer glass-layer (1), a first adhesion-layer (3), the metal-foil (5,6), a second adhesion-layer (4) and the inner glass-layer (2). USE/ADVANTAGE - The sensor is less sensitive to contamination of the glass-layer than current sensors. The capacitor plates can be built inside the glass-plate and, if the InSn-oxide layer is used, does not obstruct the driver's view. The sensitivity of the sensor can be increased by using a large perimeter structure of the 2 electrodes, e.g. an interdigitated shape. The sensor is used to switch the windshield wipers of lorries.
Patent DE-3942967-A1 (DE)
Title: Fast power diode e.g. Schottky or PIN-epitaxial diode - uses PNN with doping of P region adjusted to give optimum switching and blocking characteristics
Inventor: LUTZ JOSEF DIPL PHYS
IPC: H01L29/861
Filed: 1989-12-23
Abstract: The cross-section of the structure of a fast power diode has a heavily doped very thick n+ substrate region (1), a high resistance highly doped very thin n- middle region (2) and a very thin epitaxial p-region (3). The doping of the second outer layer (3) is chosen to give no emission of majority carriers in the forward direction. Preferably, the doping concentration of region (3) is 5 x 10 to the power 14 - 5 x 10 to the power 16 cm to the power (-3) with a thickness of 3-20 micrometre.  Heavy metal doping provides recombination centres to give negligible carrier lifetime. ADVANTAGE - Negligible switching loss and high blocking voltage.
Patent DE-4002062-A1 (DE)
Title: FRP laminates for protective covers etc. - has FRP layers interleaved with thermoplastic polymer, greatly reducing risk of injuries from sec. splinters
Inventor: STABENAU HANS GUENTER
IPC: B32B27/04
Filed: 1990-01-22
Abstract: FRP is made up of a number of layers of fibre mats, filaments, cords etc. of suitable type and properties laminated together by plastic material or resin, it has thermoplastic layers between the individual fibrous layers. These thermoplastics are preferably polyamide, polycarbonate, polyurethane, or acrylic, and the fibres concerned are carbon, aramid or glass. Pref. the product is a laminate of glass mats (16) interleaved with a thermoplastic polymer (17). When a high energy projectile (12) strikes it (18) and fractures (12a) the laminate (18) the projectile passing through produces secondary splinters which move out in a conical beam (15a). The number of the secondary splinters, however, is much smaller than that from a conventional similar laminate; moreover the area (20a) covered by them is smaller. The actual (21) number is only 5-10% of that from usual laminates. These splinters are glass particles. ADVANTAGE - The products are not complicated to produce but provide high degree of safety against secondary splinters etc. (i.e. particles which are broken off by impact with a primary object).
Patent DE-4003840-A1 (DE)
Title: Multilayered ski runner construction - has top and bottom interengaging box-like sections
Inventor: BEJEAN ALAIN
IPC: A63C5/12
Filed: 1990-02-08
Abstract: The ski comprises a lower profile (1) and upper profile (2) which each have a box support shape wherein one of the profiled sections has in the top and bottom sides a longitudinal groove (1f,1g) whose cross sectional shape substantially corresp. to that of the lower or upper part (2d,2e) of the other section. The lower profiled section and upper profiled section are combined by inserting the  suitably shaped part of one section into the longitudinal groove of the other. USE/ADVANTAGE - Easier mfr. of multilayer ski runners.
Patent DE-4005731-A1 (DE)
Title: Transferring objects to conveyor belts - uses grippers to hold objects to increase transfer speed
Inventor: KAMMLER ROMAN DR ING
IPC: B65G47/84
Filed: 1990-02-23
Abstract: The transfer system for objects (1) from a tubular bag machine (2) to a conveyor belt (3) uses at least one gripper (7) for picking up the object which is movable between the conveyor belt (3) and a transport system (8) for supplying the object. The object is taken up by the transfer device (4), moved to the conveyor belt (3) and set down in a socket (5) of the conveyor  belt. The gripper can be a vacuum suction member set on a swivel mounted arm (9). Each object can be removed from a buffer store (6). The speed of the transfer device when setting down the object pref. equals the speed of the conveyor belt. USE/ADVANTAGE - Improved functional reliability irrespective of the size of the objects.
Patent DE-4005982-A1 (DE)
Title: Horizontal broad band antenna - has operation over 5 short wave bands with low noise
Inventor: THUEUEL WERNER
IPC: H01Q5/15
Filed: 1990-02-26
Abstract: The coaxially supplied, broad band antenna for short wave range operation has an insulated base (1) of plastic. Rectangular aluminium tube is used for stiffening to create a stable structure. The conducting base (18) is produced with an emitter plate (19) and a conducting tube (20). The plate and tube are secured by U-shaped plates to the base. Emitter elements (8,9,5,6) are arranged in parallel and project from the base. A coupling element (7) connects with the ground screening of the connecting cable (10). USE/ADVANTAGE - For attachment under sealing or as portable in vehicle. Provides reduced size and is simple to connect.
Patent DE-4006645-A1 (DE)
Title: Coupling agent(s) for 2-component polyurethane adhesive(s) - comprise enamine(s), esp. 2-N-morpholinyl-cyclo:hex-1-ene, which are incorporated in poly:ol component
Inventor: VORSPOHL KLAUS DR
IPC: C09J175/04
Filed: 1990-03-03
Abstract: Enamines of formula (I) are useful as coupling agents in 2-component polyurethane (PU) adhesives (II). In (I), R4, R5 = 1-8C alkyl, 7-13C aralkyl or 4-8C cycloalkyl, or the two gps. plus the N atom can form a 5-7 membered heterocycle; CnH2n = 3-12C alkylene with at least 3 directly linked C atoms. Pref. (I) is 1-(N-morpholinyl)-cyclohex-1-ene (IA). USE/ADVANTAGE - Coupling agents for 2-component PU adhesives, which can be incorporated into component 2 (i.e. the active H-contg. component based on polyhydric alcohols, etc.). Prior-art coupling agents are either only suitable for 1-component PU adhesives or have to be mixed with the polyisocyanate (component 1). The use of (I) gives improved adhesion on glass, metal, etc., together with improved mechanical properties.
Patent DE-4006751-A1 (DE)
Inventor: MAYR MAX DR
IPC: C25C1/00
Filed: 1990-03-03
Abstract: In a process for electrolytic demetallization of a solution containing metallic ions, the solution is introduced into a closed, gas-vented cell with an anode and a cathode and a d.c. current supply. The cell has a hydrogen sensor above the solution level which monitors the evolution of hydrogen during demetallization. Immediately the hydrogen above the solution exceeds a given percentage by weight, the intensity of the cell current is reduced to a predetermined level by the hydrogen sensor and switching off of the control system. If hydrogen is subsequently evolved, the current intensity is again reduced to a predetermined value. This hydrogen-evolution cycle with current reduction in each case is repeated until the residual concentration of the metallic ions falls below a given value.
Patent DE-4009356-A1 (DE)
Title: Plastic reusable container - has ribs and lifting supports and can be stacked without wedging
Inventor: HEINZELMANN ACHIM DIPL ING
IPC: B65D25/26
Filed: 1990-03-23
Abstract: Container (1) is made of a single piece and has several ribs (3) near the junction of the bottom and the side wall and bottom is made up of resilient flat segments (4). Open end has two lifting stirrup supports which also serve as distance pieces (5) to ensure that stacked containers do not jam or contaminate each other by creating a sepn. distance (III), a lower space (I) and a gap (II). The distance pieces (5) have cut outs, lead slots and bearing surfaces for the lifting stirrup. Pref. the material should be more than 2mm thick, have additives like CaCO3 and a smooth surface finish. Proportion of height to width is pref. 1-1.13 and the conical walls have an inclination of 2.5-3 deg. Gap (II) should be 2mm and the space (I) should be 5-10% of the container capacity. USE/ADVANTAGE - Useful as a returnable and reusable container, is robust and can easily be cleaned.
Patent DE-4009688-A1 (DE)
Title: Cover for IC engine cylinder head - has thickness of cover wall increased in edge region
Inventor: MELDE-TUCZAI HELMUT DIPL ING
IPC: F02F7/00
Filed: 1990-03-26
Abstract: The cover (1) has a wall (2) which is flat or only slightly domed and is bounded by a region (3) which has a much thicker wall and consequently much greater stiffness. The thickness of the wall outside the region (3) is reduced by at least 30 percent and pref. by more than 50 percent relative to the thickness in the region (3). This increase in thickness shifts the first natural frequency of vibration of the cover to a lower frequency band. USE/ADVANTAGE - Reduction of emission of noise.
Patent DE-4021296-A1 (DE)
Title: Paper web conditioning - by passing electrostatic field through paper at application point, whilst applying medium e.g. silicon soln.
Inventor: HARLING HEINZ
IPC: B05C9/04
Filed: 1990-07-04
Abstract: To apply a conditioning medium to a paper web, such as a silicon soln. to form a silicon film, the medium is applied while an electrostatic field passses through the web. Pref. the electrostatic field is generated at or near the roller application point, and the medium is applied successively to opposite sides of the web while independent opposing electrostatic fields are present. After processing, the web is passed through a station to neutralise the charge and/or to give a defined residual charge. ADVANTAGE - The method gives a defined conditioning of the surface and the inner structure of the paper, such as for offset printing and folding.